Toothbrush



FIG. 1 is a side elevational view of a toothbrush, showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a sectional view thereof taken along line 4--4 of FIG. 3; and

FIG. 5 is a sectional view thereof taken along line 5--5 of FIG. 3.

The bristles have been omitted from FIG. 4 for ease of illustration. 

The ornamental design for a toothbrush, substantially as shown and described. 